Separator for bead-sewing machines



J. A. GROEBLI SEPARATOR FOR BEAD SEWING MACHINES Filed an. 9, 1924 2 Sheets-Sheet 1 5 V 7 anwmtoz,

Jaw 4.51M. 1x117 6141mm:

J. A. GROEBLI- SEPARATOR FOR BEAD SEWING MACHINES Fil'ed Jan. 192.4 2 Sheets-Sheet 2 Patented May 5, 1925.

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I Application filed January ,9, 1924, SerialNo. 685,084.

To all. whom it may concern: I

Be it known that I, Josnrrr A. GRo-nBLI, a citizen of the United States, and a resident of the city, county, and State of New York, have invented certain new and use ful Improvements in Separators for Bead- Sewing Machines, of which the following isa specification.

My invention relates to an improvement in. the bead separating mechanism for vbead sewingmachines, by means of which beads loosely strung upon a thread are fed along it and attached to a fabric, either by the same thread or by a second thread; and my improvements are directed particularly to novelfeatures in the means whereby the beads are finally released one by one and allowed to slide down along the thread to the fabric to which they are to be attached; the object ofmy present improvement being to provide means whereby the feeding of the beadsmay be arrested,suspended or resumed optionally without interfering with the forward movement of the thread upon which they are strung, thus permitting the machine to be used either as a bead sewing machine or as a plain sewing machine, as the work progresses, according to the wishes ofthe operator. A machineof this general type is shown in my Letters Patent No. 1,445,764, dated February 20th, 1923 and the application of my present improvements willbe readily understood if reference 18 made to my-aforesaid patent for an illustration of the operative mechanism not-shown in the drawings of this application. Y I

The separator mechanism whereby the beads are alternately gripped or released in the normal, continuous feeding of the beads isthe subject of another application heretofore filed by me in the Patent (Miles, and now pending Serial No. 651,769, filed July 16th, 1923; and, therefore, I willnot describe it further than is requisite fora proper understanding of my present impui' ovements.

In the drawings, F 1 is a side clcvation of part of the head of a sewing machine, showing the lmanner in which my improvements may be connected with and embodied in pre-existing mechanisms; Fig. 2 is an elevation of my improved bead separator associated with a looper and needle;

Fig. 3 is a view of the same taken as lookthe stitch. mechanism.

ing tothe left on Fig, 2 Fig.""4 is a view of the same taken as looking in a reverse position from that of 2, the thread guide and needle being omittedyFig. 5 is a view of the separator mechanism, looking up on Fig. 2, the thread guide being omitted; Fig. 6 is a cross sectional view,

taken on the line 66of Fig. 1, looking is a vertical sectional 1 down; and Fig. 7 view, showing the parts in the same positions as in Fig. 2.

In all the figures similar parts are designated by similar reference numerals.

A head separator is carried by a tube 53 which corresponds to the tube 58 of my aforesaid Patent No.,1,445,764, and may be mounted and rotated by similar mechanism; The looper arm48 is carried by a collar or head 46 attached to a tube 38, which corresponds to the tube 38 in my aforesaid patent and. may be mounted and rotated by similar means, while the needle 75 and the feeder foot 106 correspond to the parts similarly numbered in my said patent. y

In separators, of the class to which my improvements are directed, the beads are dropped one by one; so as to fall atthe right time into proper. position for being secured to the fabric by thestitching mecha nism, the operation of the separating mechanism being continuous, a bead or "beads, for instance, being passedby the separator for each cycle of operation. of But under certain circumstances it becomes deslrable to hold back, optionally, the beads, while allowing the stitch mechanism to continue to function, so that the machine may be employed for head sewing or for plain sewing according to the wishes of the operator.

A, separator embodying bead gripping" and releasing elements which open and close to separate and drop the beads, subtantially shown in the drawings herein,

"is the sub'ect of a se Jarate )endin a) )iication by me for a United States patent Serial No. 651,769, filed July 16th, 1923. I will, therefore, not desc'ribethe details of that part of the construction of the separator further than is necessary for a clear' understanding of my present improve ments. a U

The lower end of the bore of tube .53 is contracted and deflected to open through the side of the tube at 2; and a yoke-like member l is pivoted, by screws 5, 5, to the tube 53, the yoke being provided with an upwardly projecting arm 6, passing through a slot 7, in a guide plate 8 carried by the tube 53, the yoke l also being provided with a downwardly depending arm 9, secured thereto by suitable means, such as screws 10, 10, so that it will rock back and forth with the movements of the yoke a on its pivots.

v The lower end 11 of the arm 9 lies transversely below the end of the tube 53, and is so proportioned thatit may be rocked to one side under the end of the tube, so as to lie beneath the bead duct and at approximately the distance of one bead length beneath it, but may be rocked in the opposite direction so as to clear the bead duct, and allow the bead to drop, it being so formed as to clear the needle when it is so rocked. By providing the arin 9 with slots 13, 13, through which pass the securing screws 10, 10, vertical adjustment may be obtained so as to accommodate its position to beads of different lengths.

A spring 15 interposed between a support 16, attached to the lower end of the tube and the yoke l, presses the bow of i the yoke 4 and its arm 6 upward, yieldably.

To the looper tube 38- is secured a cam race which rotates with the looper tube. The arm 6 travels against this cam race, and the yoke 1 will be rocked to and fro by the camrace 20' once with each revolution of the loop'er tube 38.

A jaw member is pivoted, as at 26, in a bearing 27 carried by the lower end of the tube 53; and it is provided with an arm 28 which registers in the lower part ot' the bead duct 2; being normally kept to duty by a spri 30', the ends of which are held in the p'port 16, while the loop of the spring lies behind the jaw 25. The inner face of the arm 28 is disposed at an acute angle to the opposed face of the bead duct 2, so that the arm 25' will engage the lowermostbe'ad laterally, but, preferably, will not bear against the beads higher up.

The jaw 25 is provided with a laterally disposed arm 31,- which is engageable by the end 32', of an arm 33', pivoted at 34L to an extension 35 secured to the yoke 4:, as by screws 36', 37, so that the .arm 33 swings back and forth with the yoke 4.

A spring 38, interposed between the yoke 4 are the pivoted arm 3'3, normally keeps the arm depressed, in the position shown in Figs; 3, 4 and 5, so that its shoulder 39 rests against a plate 40,- pi'voted', as by means of a screw 41, p'a'ssin loosely through alug on the plate 40 and into the support 16, and guided by another screw 42, also passing loosely through the plate l0 and into the support 16, so that the plate may swing toward or away from the support, the normal position of the plate for head sewing being that shown in Figs. 2, 3, at and 5.

A wire 4E5, headed below, and passing freely through a hole in the plate 41:0, is carried up through the tube 53 to a suitable point from which it may be carried out through the side of the tube and connected with means whereby it may be raised and lowered.

Such means are shown in the drawings as consisting'oit a collar 56, surrounding the tube and engaged by one end 417 of a bell crank 44;, pivoted in a suitable bearing in the head of the machine. From the opposite arm of the bell crank, a rod 19 is carried down to a control lever 50, pivoted on the head of the machine and provided with means, such a cam 51, preferably provided with stops 552, 53, by the movement of which cam the rod 19 may be raised and lowered, to rock the bell crank 14-, and thereby to raise and lower the wire 45. A spring 5 1, between the bell crank and machine head, keeps the rod 49 to duty on the cam 51.

When the rod 15 is lowered in the tube 53', the plate 41-0 drops down into the position shown in Figs. 1 to 5 inclusive; and, as the cam race 20 is carried around by the looper tube 38, in the operation of the machine, and the yoke) is rocked, to and fro, it will, through the arm 33 engaging with the arm 31 on, the member 25, rock that member so as to alternately open and close the opening ot the bead channel; engaging, when. closed, the lowermost bead and releasing); it, when opened, to drop down to the arm 11 by which it will be released by the reverse nimei'nent of that arm;

But, if the wire is raised, as by means of the hand control 50, the plate 10 will be drawn up toward the bottom of the support 16, pushing up the arm so that its end 32 will lie above the opposed end 31 of the member 25, so that, when the arm 33 is rocked back and forth with the yoke 4:, the arm 31 will lie out of contact with the end 32, and, will not be affected by its movement, but will remain closed, arresting the downward movement of the beads, and permitting the machine to be' used for ordinary machinestitching, the bead thread being drawn down, through the loosely strung beads, to the needle as required by the stitching.

Byreversing the position of the hand control, the separator may be released to function for bead sewing purposes.

It will be seen, therefore, that by means of my improvements I- produce a machine on which either ordinary stitching or head sewing may be done, according to the wishes of the operator and the requirements of the work in hand, the bead sewing elements being thrown into or out of operation by the simple manipulation of the hand control.

While IhaVe illustrated my improvements as applied to a two thread machine, it is obvious that they are also applicable to a single thread machine, employing a bead thread upon which beads are loosely strung so that the thread may be drawn forward through the beads to the stitch forming mechanism.

It will also be understood that the mechanism shown is to be considered as an, illustrative and not as an exclusive type. For details of construction may be variedby the use of mechanical equivalents or the like without departing from the spirit of my in vention as described and claimed.

Having thus described my invention, what I claim and desire to secure by Letters Patent of the United States, is

1. The combination, in a sewing machine, oil stitch-forming mechanism means for supplying a thread with beads loosely strung thereupon, bead separating means, and optionally operable means for superseding the operation of the separating means.

2. The combination, in a sewing machine, of stitch-forming mechanism means for supplying a thread with beads loosely strung thereupon, a bead separator embodying bead holding and bead releasing means, and optionally operable means for suspending the releasing action of the separator.

STllhe combination, in a sewing machine of stitch-forming means, means for supplying a thread with beads loosely strung thereupon automatically operable, means for holding and releasing the beads successively, and optionally operable means, independent of said automatically ope fable means, for suspending the releasing action of the holding and releasing means.

t. The combination, in a sewing machine of stitch-forming means, means for supplving a thread with beads loosely strung there- 6. The combination, in a. sewing machine,

of stitch-forming mechanism, a bead separator en'ibodyiug reciprocable bead holding and releasing means automatic operating mechanism therefor, and optionally operable means independent of the automatic operating mechanism for suspending the releasing action of the separator.

7. The combination, in a sewing machine, of stitch-forming mechanism, a bead separator embodying reciprocable bead holding and releasing means, automatic operating mechanism therefor, and optionally operable means independent of the automatic operating means and provided with locking means for suspending the releasing action of the separator.

S. The combination, in a sewing machine, of stitch-forming mechanism, an automatically operable bead separator embodying reciprocable bead. holding and releasing means, and optionally operable means provided with locking means embracing a pivoted latch for suspending the releasing action of the separator independently o'fsaid auton'iatically operable means.

-.l '1 till PH A. GROEBLI. 

